Here's a breakdown of the code and how it works:

Parameter Definitions:

• High Note: Sets the maximum MIDI note value.
• Low Note: Sets the minimum MIDI note value.
• Probability: Determines the chance of a note being sent, expressed as a percentage.

Event Handling:

1. Note Filtering:
   • Checks if the incoming MIDI note's pitch is within the specified range.
   • If the note is outside the range, an "all notes off" message is sent to prevent unintended sounds.
2. Probability Check:
   • Uses a random number generator to determine if the note should be sent based on the probability parameter.
   • If the random number is less than or equal to the probability, the note is sent.
3. Event Sending:
   • If the note passes both the range and probability checks, it's sent to the output.

Key Points:

• Randomness: The eventShouldSend() function introduces randomness by generating a random number between 1 and 100. If this number is less than or equal to the probability setting, the note is sent.
• Flexibility: By adjusting the High Note, Low Note, and Probability parameters, you can create a wide range of effects, from subtle randomization to extreme filtering.
• Efficiency: The code is optimized for performance, ensuring smooth processing of MIDI data.

Additional Tips:

• Experiment with different probability settings to achieve various levels of randomness and filtering.
• Combine this script with other MIDI effects to create complex and interesting sound transformations.
• Consider using this script to create unique rhythmic patterns and melodic variations.

By understanding the core concepts and the code behind this MIDI Note Range Filter with a Probability Gate, you can unlock new creative possibilities in your music production.